Lime Fine Crack Filler
Rose of Jericho fine crack filler is a blend of fine marble flour and mature superfine Buxton lime putty used for fine crack repairs to internal lime plaster.
Additional information
Our Lime Fine Crack Filler is a professional-grade, ready-to-use repair mortar specifically formulated for the restoration of historic internal finishes. A precise blend of fine marble flour and mature superfine Buxton lime putty, this filler provides a chemically sympathetic solution for treating hairline and minor structural cracks in traditional lime plaster, lath and plaster, and decorative moldings.
Unlike modern gypsum-based fillers, this material remains fully vapor-permeable and flexible, allowing it to move with the building’s natural breathability without popping out or causing "edge-mapping" through your finish.
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Ultra-Fine Texture: The inclusion of superfine marble flour allows the filler to be feathered out to a near-invisible edge, perfect for high-status internal surfaces.
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Minimal Shrinkage: The high-purity marble aggregate provides the necessary structural body to prevent the "sag" and shrinkage often associated with pure lime putty repairs.
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Superior Maturity: We use only 6 month or more matured Buxton lime putty, ensuring maximum plasticity, ease of application, and a superior chemical bond to the existing plaster.
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Vapor Permeable: Maintains the "breathable" integrity of historic walls, preventing moisture entrapment behind the repair.
Environmental Considerations
Lime Putty plaster is an environmentally sustainable product.
Usage/Purpose
Rose of Jericho fine crack filler is intended for the repair of hairline and fine cracks in internal lime plaster only. Wider cracks may be filled but shrinkage is more likely and careful monitoring, tending and aftercare is required during the curing process to avoid shrinkage cracking.
Shelf Life
Unlimited. Matures with age. Lime putty crack filler stiffens during storage but can be plasticised without the addition of water by thorough re-mixing.
Observations
The use of lime putty crack filler for plaster repair is a skilled operation normally undertaken by an experienced conservator. It is intended for the filling and repair of fine cracks. Wider crack repairs may be undertaken but there is an increased risk of shrinkage cracking and great care must be taken. Non-hydraulic lime materials do not perform as modern fillers and set only by reaction with atmospheric carbon dioxide in the presence of moisture. This ‘carbonation’ is a slow process and control of the drying and curing process by ‘tending’ and protecting is crucial to success and long-term performance.
Availability
250ml, litre & 2.5 litre tins. Mixed to order.
